A Novel Scheme for Seamless Integration of ROF With Centralized Lightwave OFDM-WDM-PON System

Author

Chen, Lin ; Yu, J.G. ; Wen, Shuangchun ; Lu, J. ; Dong, Z. ; Huang, M. ; Chang, G.K.

Author_Institution

Minist. of Educ., Hunan Univ., Changsha, China

Volume

27

Issue

14

fYear

2009

fDate

7/15/2009 12:00:00 AM

Firstpage

2786

Lastpage

2791

Abstract

We have experimentally demonstrated a novel transmission system for seamless integration of ROF with centralized lightwave OFDM-WDM-PON based on an integrated external modulator. At the one of two arms of the integrated external modulator, the optical carrier suppression (OCS) is realized to generate 40-GHz optical millimeter-wave (mm-wave) and up-converted baseband data signal as wireless signal. In another arm of the integrated external modulator, 16 quadrature amplitude modulation intensity-modulated OFDM signals at 10 Gbit/s are used for downstream transmission as wired signal based on double sideband modulation. By using one intensity modulator (IM), the downstream RF OFDM signal is remodulated for upstream on-off keying (OOK) data at 2.5 Gbit/s because of its downstream RZ shape waveform. The 10-Gbit/s wired signal, 2.5-Gbit/s wireless signal, and 2.5-Gbit/s upstream signal have been transmitted over 20-km single mode fiber (SMF) successfully.

Keywords

OFDM modulation; amplitude shift keying; intensity modulation; microwave photonics; optical fibre networks; optical frequency conversion; optical modulation; quadrature amplitude modulation; radio-over-fibre; wavelength division multiplexing; OOK; RZ shape waveform; bit rate 10 Gbit/s; bit rate 2.5 Gbit/s; centralized lightwave OFDM-WDM-PON system; distance 20 km; double sideband modulation; downstream transmission; integrated external modulator; intensity modulator; on-off keying; optical carrier suppression; optical millimeter-wave generation; passive optical network; quadrature amplitude modulation; radio-over-fibre; seamless integration; single mode fiber; up-converted baseband data signal; wavelength division multiplexing; wireless signal; Integrated external modulator; optical millimeter wave generation; orthogonal frequency-division multiplexing (OFDM); radio over fiber (ROF); wavelength-division-multiplexed passive optical network (WDM-PON);

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2009.2016984

Filename

4895327